It seems Fallout 3 is the best game for dying hilariously o.o
However I'd most likely say the Portal 'Radio-at-top-speed' death (mentioned on here last month I think) was the most funny thing I can remember:
Someone put a portal on the floor, one on ceiling opposite it, and dropped a radio into it. He then looked into the floor portal to see how fast the radio was going, and it slammed into his head, killing him.
XD
However I'd most likely say the Portal 'Radio-at-top-speed' death (mentioned on here last month I think) was the most funny thing I can remember:
Someone put a portal on the floor, one on ceiling opposite it, and dropped a radio into it. He then looked into the floor portal to see how fast the radio was going, and it slammed into his head, killing him.
XD